Year	Percent
1950	11.63467
1955	11.94879
1960	6.03436
1965	6.52458
1970	9.0043
1975	11.32748
1980	12.66459
1985	10.76714
1990	8.75993
1995	8.47052
2000	9.49072
2005	10.7546
2010	9.64393
2015	7.05137
2020	5.83208
2025	6.17813
2030	7.47679
2035	6.88823
2040	5.96989
2045	5.47981
2050	5.51585
2055	5.67755
2060	5.68796
2065	5.55257
2070	5.35551
2075	5.23671
2080	5.24104
2085	5.28699
2090	5.28812
2095	5.22955
2100	5.14614